<?php
/**
 * PHPExcel
 *
 * Copyright (c) 2006 - 2010 PHPExcel
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * @category	PHPExcel
 * @package		Writer
 * @copyright	Copyright (c) 2006 - 2010 PHPExcel (http://www.codeplex.com/PHPExcel)
 * @license		http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt	LGPL
 * @version		1.7.3c, 2010-06-01
 */


/** Require FPDF library */
$k_path_url = dirname(__FILE__) . '/PDF';
require_once ROOT . 'PHPExcel/Shared/PDF/tcpdf.php';

/**
 * Writer_PDF
 *
 * @category	PHPExcel
 * @package		Writer
 * @copyright	Copyright (c) 2006 - 2010 PHPExcel (http://www.codeplex.com/PHPExcel)
 */
class Writer_PDF extends Writer_HTML implements Writer_IWriter {
	/**
	 * Temporary storage directory
	 *
	 * @var string
	 */
	private $_tempDir = '';

	/**
	 * Font
	 *
	 * @var string
	 */
	private $_font = 'freesans';

	/**
	 * Orientation (Over-ride)
	 *
	 * @var string
	 */
	private $_orientation	= null;

	/**
	 * Paper size (Over-ride)
	 *
	 * @var int
	 */
	private $_paperSize	= null;


	/**
	 * Paper Sizes xRef List
	 *
	 * @var array
	 */
	private static $_paperSizes = array(
		//	Excel Paper Size													TCPDF Paper Size
		Worksheet_PageSetup::PAPERSIZE_LETTER							=> 'LETTER',				//	(8.5 in. by 11 in.)
		Worksheet_PageSetup::PAPERSIZE_LETTER_SMALL					=> 'LETTER',				//	(8.5 in. by 11 in.)
		Worksheet_PageSetup::PAPERSIZE_TABLOID							=> array(792.00,1224.00),	//	(11 in. by 17 in.)
		Worksheet_PageSetup::PAPERSIZE_LEDGER							=> array(1224.00,792.00),	//	(17 in. by 11 in.)
		Worksheet_PageSetup::PAPERSIZE_LEGAL							=> 'LEGAL',					//	(8.5 in. by 14 in.)
		Worksheet_PageSetup::PAPERSIZE_STATEMENT						=> array(396.00,612.00),	//	(5.5 in. by 8.5 in.)
		Worksheet_PageSetup::PAPERSIZE_EXECUTIVE						=> 'EXECUTIVE',				//	(7.25 in. by 10.5 in.)
		Worksheet_PageSetup::PAPERSIZE_A3								=> 'A3',					//	(297 mm by 420 mm)
		Worksheet_PageSetup::PAPERSIZE_A4								=> 'A4',					//	(210 mm by 297 mm)
		Worksheet_PageSetup::PAPERSIZE_A4_SMALL						=> 'A4',					//	(210 mm by 297 mm)
		Worksheet_PageSetup::PAPERSIZE_A5								=> 'A5',					//	(148 mm by 210 mm)
		Worksheet_PageSetup::PAPERSIZE_B4								=> 'B4',					//	(250 mm by 353 mm)
		Worksheet_PageSetup::PAPERSIZE_B5								=> 'B5',					//	(176 mm by 250 mm)
		Worksheet_PageSetup::PAPERSIZE_FOLIO							=> 'FOLIO',					//	(8.5 in. by 13 in.)
		Worksheet_PageSetup::PAPERSIZE_QUARTO							=> array(609.45,779.53),	//	(215 mm by 275 mm)
		Worksheet_PageSetup::PAPERSIZE_STANDARD_1						=> array(720.00,1008.00),	//	(10 in. by 14 in.)
		Worksheet_PageSetup::PAPERSIZE_STANDARD_2						=> array(792.00,1224.00),	//	(11 in. by 17 in.)
		Worksheet_PageSetup::PAPERSIZE_NOTE							=> 'LETTER',				//	(8.5 in. by 11 in.)
		Worksheet_PageSetup::PAPERSIZE_NO9_ENVELOPE					=> array(279.00,639.00),	//	(3.875 in. by 8.875 in.)
		Worksheet_PageSetup::PAPERSIZE_NO10_ENVELOPE					=> array(297.00,684.00),	//	(4.125 in. by 9.5 in.)
		Worksheet_PageSetup::PAPERSIZE_NO11_ENVELOPE					=> array(324.00,747.00),	//	(4.5 in. by 10.375 in.)
		Worksheet_PageSetup::PAPERSIZE_NO12_ENVELOPE					=> array(342.00,792.00),	//	(4.75 in. by 11 in.)
		Worksheet_PageSetup::PAPERSIZE_NO14_ENVELOPE					=> array(360.00,828.00),	//	(5 in. by 11.5 in.)
		Worksheet_PageSetup::PAPERSIZE_C								=> array(1224.00,1584.00),	//	(17 in. by 22 in.)
		Worksheet_PageSetup::PAPERSIZE_D								=> array(1584.00,2448.00),	//	(22 in. by 34 in.)
		Worksheet_PageSetup::PAPERSIZE_E								=> array(2448.00,3168.00),	//	(34 in. by 44 in.)
		Worksheet_PageSetup::PAPERSIZE_DL_ENVELOPE						=> array(311.81,623.62),	//	(110 mm by 220 mm)
		Worksheet_PageSetup::PAPERSIZE_C5_ENVELOPE						=> 'C5',					//	(162 mm by 229 mm)
		Worksheet_PageSetup::PAPERSIZE_C3_ENVELOPE						=> 'C3',					//	(324 mm by 458 mm)
		Worksheet_PageSetup::PAPERSIZE_C4_ENVELOPE						=> 'C4',					//	(229 mm by 324 mm)
		Worksheet_PageSetup::PAPERSIZE_C6_ENVELOPE						=> 'C6',					//	(114 mm by 162 mm)
		Worksheet_PageSetup::PAPERSIZE_C65_ENVELOPE					=> array(323.15,649.13),	//	(114 mm by 229 mm)
		Worksheet_PageSetup::PAPERSIZE_B4_ENVELOPE						=> 'B4',					//	(250 mm by 353 mm)
		Worksheet_PageSetup::PAPERSIZE_B5_ENVELOPE						=> 'B5',					//	(176 mm by 250 mm)
		Worksheet_PageSetup::PAPERSIZE_B6_ENVELOPE						=> array(498.90,354.33),	//	(176 mm by 125 mm)
		Worksheet_PageSetup::PAPERSIZE_ITALY_ENVELOPE					=> array(311.81,651.97),	//	(110 mm by 230 mm)
		Worksheet_PageSetup::PAPERSIZE_MONARCH_ENVELOPE				=> array(279.00,540.00),	//	(3.875 in. by 7.5 in.)
		Worksheet_PageSetup::PAPERSIZE_6_3_4_ENVELOPE					=> array(261.00,468.00),	//	(3.625 in. by 6.5 in.)
		Worksheet_PageSetup::PAPERSIZE_US_STANDARD_FANFOLD				=> array(1071.00,792.00),	//	(14.875 in. by 11 in.)
		Worksheet_PageSetup::PAPERSIZE_GERMAN_STANDARD_FANFOLD			=> array(612.00,864.00),	//	(8.5 in. by 12 in.)
		Worksheet_PageSetup::PAPERSIZE_GERMAN_LEGAL_FANFOLD			=> 'FOLIO',					//	(8.5 in. by 13 in.)
		Worksheet_PageSetup::PAPERSIZE_ISO_B4							=> 'B4',					//	(250 mm by 353 mm)
		Worksheet_PageSetup::PAPERSIZE_JAPANESE_DOUBLE_POSTCARD		=> array(566.93,419.53),	//	(200 mm by 148 mm)
		Worksheet_PageSetup::PAPERSIZE_STANDARD_PAPER_1				=> array(648.00,792.00),	//	(9 in. by 11 in.)
		Worksheet_PageSetup::PAPERSIZE_STANDARD_PAPER_2				=> array(720.00,792.00),	//	(10 in. by 11 in.)
		Worksheet_PageSetup::PAPERSIZE_STANDARD_PAPER_3				=> array(1080.00,792.00),	//	(15 in. by 11 in.)
		Worksheet_PageSetup::PAPERSIZE_INVITE_ENVELOPE					=> array(623.62,623.62),	//	(220 mm by 220 mm)
		Worksheet_PageSetup::PAPERSIZE_LETTER_EXTRA_PAPER				=> array(667.80,864.00),	//	(9.275 in. by 12 in.)
		Worksheet_PageSetup::PAPERSIZE_LEGAL_EXTRA_PAPER				=> array(667.80,1080.00),	//	(9.275 in. by 15 in.)
		Worksheet_PageSetup::PAPERSIZE_TABLOID_EXTRA_PAPER				=> array(841.68,1296.00),	//	(11.69 in. by 18 in.)
		Worksheet_PageSetup::PAPERSIZE_A4_EXTRA_PAPER					=> array(668.98,912.76),	//	(236 mm by 322 mm)
		Worksheet_PageSetup::PAPERSIZE_LETTER_TRANSVERSE_PAPER			=> array(595.80,792.00),	//	(8.275 in. by 11 in.)
		Worksheet_PageSetup::PAPERSIZE_A4_TRANSVERSE_PAPER				=> 'A4',					//	(210 mm by 297 mm)
		Worksheet_PageSetup::PAPERSIZE_LETTER_EXTRA_TRANSVERSE_PAPER	=> array(667.80,864.00),	//	(9.275 in. by 12 in.)
		Worksheet_PageSetup::PAPERSIZE_SUPERA_SUPERA_A4_PAPER			=> array(643.46,1009.13),	//	(227 mm by 356 mm)
		Worksheet_PageSetup::PAPERSIZE_SUPERB_SUPERB_A3_PAPER			=> array(864.57,1380.47),	//	(305 mm by 487 mm)
		Worksheet_PageSetup::PAPERSIZE_LETTER_PLUS_PAPER				=> array(612.00,913.68),	//	(8.5 in. by 12.69 in.)
		Worksheet_PageSetup::PAPERSIZE_A4_PLUS_PAPER					=> array(595.28,935.43),	//	(210 mm by 330 mm)
		Worksheet_PageSetup::PAPERSIZE_A5_TRANSVERSE_PAPER				=> 'A5',					//	(148 mm by 210 mm)
		Worksheet_PageSetup::PAPERSIZE_JIS_B5_TRANSVERSE_PAPER			=> array(515.91,728.50),	//	(182 mm by 257 mm)
		Worksheet_PageSetup::PAPERSIZE_A3_EXTRA_PAPER					=> array(912.76,1261.42),	//	(322 mm by 445 mm)
		Worksheet_PageSetup::PAPERSIZE_A5_EXTRA_PAPER					=> array(493.23,666.14),	//	(174 mm by 235 mm)
		Worksheet_PageSetup::PAPERSIZE_ISO_B5_EXTRA_PAPER				=> array(569.76,782.36),	//	(201 mm by 276 mm)
		Worksheet_PageSetup::PAPERSIZE_A2_PAPER						=> 'A2',					//	(420 mm by 594 mm)
		Worksheet_PageSetup::PAPERSIZE_A3_TRANSVERSE_PAPER				=> 'A3',					//	(297 mm by 420 mm)
		Worksheet_PageSetup::PAPERSIZE_A3_EXTRA_TRANSVERSE_PAPER		=> array(912.76,1261.42)	//	(322 mm by 445 mm)
	);

	/**
	 * Create a new Writer_PDF
	 *
	 * @param 	PHPExcel	$phpExcel	PHPExcel object
	 */
	public function __construct(PHPExcel $phpExcel) {
		parent::__construct($phpExcel);
		$this->setUseInlineCss(true);
		$this->_tempDir = Shared_File::sys_get_temp_dir();
	}

	/**
	 * Set font. Examples:
	 *   'arialunicid0-chinese-simplified'
	 *   'arialunicid0-chinese-traditional'
	 *   'arialunicid0-korean'
	 *   'arialunicid0-japanese'
	 *
	 * @param	string	$fontName
	 */
	public function setFont($fontName) {
		$this->_font = $fontName;
		return $this;
	}

    /**
     * Get Paper Size
     *
     * @return int
     */
    public function getPaperSize() {
    	return $this->_paperSize;
    }

    /**
     * Set Paper Size
     *
     * @param int $pValue
     * @return Writer_PDF
     */
    public function setPaperSize($pValue = Worksheet_PageSetup::PAPERSIZE_LETTER) {
    	$this->_paperSize = $pValue;
    	return $this;
    }

    /**
     * Get Orientation
     *
     * @return string
     */
    public function getOrientation() {
    	return $this->_orientation;
    }

    /**
     * Set Orientation
     *
     * @param string $pValue
     * @return Writer_PDF
     */
    public function setOrientation($pValue = Worksheet_PageSetup::ORIENTATION_DEFAULT) {
    	$this->_orientation = $pValue;
    	return $this;
    }

	/**
	 * Save PHPExcel to file
	 *
	 * @param 	string 		$pFileName
	 * @throws 	Exception
	 */
	public function save($pFilename = null) {
		// garbage collect
		$this->_phpExcel->garbageCollect();

		$saveArrayReturnType = Calculation::getArrayReturnType();
		Calculation::setArrayReturnType(Calculation::RETURN_ARRAY_AS_VALUE);

		// Open file
		$fileHandle = fopen($pFilename, 'w');
		if ($fileHandle === false) {
			throw new Exception("Could not open file $pFilename for writing.");
		}

		// Set PDF
		$this->_isPdf = true;

		// Build CSS
		$this->buildCSS(true);

		// Generate HTML
		$html = '';
		//$html .= $this->generateHTMLHeader(false);
		$html .= $this->generateSheetData();
		//$html .= $this->generateHTMLFooter();

		// Default PDF paper size
		$paperSize = 'LETTER';	//	Letter	(8.5 in. by 11 in.)

		// Check for paper size and page orientation
		if (is_null($this->getSheetIndex())) {
			$orientation = ($this->_phpExcel->getSheet(0)->getPageSetup()->getOrientation() == Worksheet_PageSetup::ORIENTATION_LANDSCAPE) ? 'L' : 'P';
			$printPaperSize = $this->_phpExcel->getSheet(0)->getPageSetup()->getPaperSize();
		} else {
			$orientation = ($this->_phpExcel->getSheet($this->getSheetIndex())->getPageSetup()->getOrientation() == Worksheet_PageSetup::ORIENTATION_LANDSCAPE) ? 'L' : 'P';
			$printPaperSize = $this->_phpExcel->getSheet($this->getSheetIndex())->getPageSetup()->getPaperSize();
		}

		//	Override Page Orientation
		if (!is_null($this->_orientation)) {
			$orientation = ($this->_orientation == Worksheet_PageSetup::ORIENTATION_LANDSCAPE) ? 'L' : 'P';
		}
		//	Override Paper Size
		if (!is_null($this->_paperSize)) {
			$printPaperSize = $this->_paperSize;
		}


		if (isset(self::$_paperSizes[$printPaperSize])) {
			$paperSize = self::$_paperSizes[$printPaperSize];
		}


		// Create PDF
		$pdf = new TCPDF($orientation, 'pt', $paperSize);
		$pdf->setPrintHeader(false);
		$pdf->setPrintFooter(false);
		$pdf->AddPage();

		// Set the appropriate font
		$pdf->SetFont($this->_font);
		$pdf->writeHTML($html);

		// Document info
		$pdf->SetTitle($this->_phpExcel->getProperties()->getTitle());
		$pdf->SetAuthor($this->_phpExcel->getProperties()->getCreator());
		$pdf->SetSubject($this->_phpExcel->getProperties()->getSubject());
		$pdf->SetKeywords($this->_phpExcel->getProperties()->getKeywords());
		$pdf->SetCreator($this->_phpExcel->getProperties()->getCreator());

		// Write to file
		fwrite($fileHandle, $pdf->output($pFilename, 'S'));

		// Close file
		fclose($fileHandle);

		Calculation::setArrayReturnType($saveArrayReturnType);
	}

	/**
	 * Get temporary storage directory
	 *
	 * @return string
	 */
	public function getTempDir() {
		return $this->_tempDir;
	}

	/**
	 * Set temporary storage directory
	 *
	 * @param 	string	$pValue		Temporary storage directory
	 * @throws 	Exception	Exception when directory does not exist
	 * @return Writer_PDF
	 */
	public function setTempDir($pValue = '') {
		if (is_dir($pValue)) {
			$this->_tempDir = $pValue;
		} else {
			throw new Exception("Directory does not exist: $pValue");
		}
		return $this;
	}
}
